package com.hmdp.utils;

import cn.hutool.http.HttpStatus;
import org.springframework.web.servlet.HandlerInterceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * @author ChenPi
 * @since 2024/08/28 16:37
 */
public class LoginInterceptor implements HandlerInterceptor {

    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        // 1.判断是否需要拦截（ThreadLocal中是否有用户）
        if (UserHolder.getUser() == null) {
            // 2.需要拦截，返回401
            response.setStatus(HttpStatus.HTTP_UNAUTHORIZED);
            return false;
        }
        //6.放行
        return true;
    }
}
